A212664 - cp's OEIS frontend

A212664 Least k with precisely n partitions k = x + y satisfying x > 0 and k’ = x’ + y’, where k’, x’, y’ are the arithmetic derivatives of k, x, y.

n	a(n)
1	3
2	39
3	213
4	903
5	2379
6	2343
7	6545
8	12325
9	15015
10	16107
11	45045
12	134225
13	80535
14	142545
15	205205
16	255255
17	346035
18	533715
19	615615
20	645645
21	997815
22	1601145
23	1369095
24	1936935

[3, 39, 213, 903, 2379, 2343, 6545, 12325, 15015, 16107, 45045, 134225, 80535, 142545, 205205, 255255, 346035, 533715, 615615, 645645, 997815, 1601145, 1369095, 1936935]

cp's OEIS Frontend

A212664 Least k with precisely n partitions k = x + y satisfying x > 0 and k’ = x’ + y’, where k’, x’, y’ are the arithmetic derivatives of k, x, y.

Table of values

List of values